/* ════════════════════════════════════════════════════════════════════
   style.css — shared across all pages
   ════════════════════════════════════════════════════════════════════ */

/* ── Variables ─────────────────────────────────────────────────────── */
:root {
  --accent:    #1a73e8;
  --text:      #202124;
  --muted:     #5f6368;
  --border:    #e8eaed;
  --card-bg:   #f8f9fa;
  --bg:        #ffffff;
  --font:      'Inter', sans-serif;
}

/* ── Base ────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Progress bar ───────────────────────────────────────────────────── */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--accent);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ── Navbar ──────────────────────────────────────────────────────────── */
.site-nav {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0;
  z-index: 100;
}
.site-nav .brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text) !important;
  letter-spacing: 0.01em;
}
.site-nav .brand:hover { text-decoration: none; }
.site-nav .nav-link {
  color: var(--muted) !important;
  font-size: 0.875rem;
  padding: 0.2rem 0.55rem !important;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
.site-nav .nav-link:hover,
.site-nav .nav-link.active {
  color: var(--text) !important;
  text-decoration: none;
}
.site-nav .nav-link.active { font-weight: 600; }

/* ctrl k button */
.ctrlk-btn {
  display: flex;
  align-items: center;
  gap: 3px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.2rem 0.5rem;
  cursor: pointer;
  transition: border-color 0.15s;
}
.ctrlk-btn:hover { border-color: var(--accent); }
.ctrlk-key {
  font-family: var(--font);
  font-size: 0.72rem;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.05rem 0.35rem;
}

/* ── Profile ─────────────────────────────────────────────────────────── */
.profile-photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--border);
  display: block;
  margin: 0 auto;
}

.display-name {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  line-height: 1.2;
}

.role-line {
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.profile-links-inline {
  font-size: 0.85rem;
  margin-bottom: 1.4rem;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.social-icons a {
  color: var(--muted);
  font-size: 1.2rem;
  transition: color 0.15s;
}
.social-icons a:hover { color: var(--accent); text-decoration: none; }

/* ── Research list ───────────────────────────────────────────────────── */
.research-list {
  padding-left: 1.2rem;
  margin-bottom: 1rem;
}
.research-list li { margin-bottom: 0.4rem; font-size: 0.97rem; }

/* ── Section heading ─────────────────────────────────────────────────── */
.section-h {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

/* ── News ────────────────────────────────────────────────────────────── */
.news-wrap {
  max-height: 260px;
  overflow-y: auto;
  font-size: 0.9rem;
}
.news-row {
  display: flex;
  gap: 1.2rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
}
.news-row:last-child { border-bottom: none; }
.news-date {
  white-space: nowrap;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 500;
  min-width: 68px;
  padding-top: 0.1rem;
}

/* ── Post list ───────────────────────────────────────────────────────── */
.post-list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.6rem;
}
.post-list li {
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}
.post-list li:last-child { border-bottom: none; }
.post-date {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
  margin-right: 0.5rem;
}

.see-all {
  font-size: 0.83rem;
  color: var(--accent);
  display: inline-block;
  margin-top: 0.4rem;
}
.see-all:hover { text-decoration: underline; }

/* ── Publication mini (on index) ─────────────────────────────────────── */
.pub-mini {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}
.pub-mini:last-of-type { border-bottom: none; }
.pub-mini-venue {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 0.15rem;
}
.pub-mini-authors {
  font-size: 0.83rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

/* ── Publications page ───────────────────────────────────────────────── */
.pub-item {
  display: flex;
  gap: 1rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--border);
}
.pub-item:last-child { border-bottom: none; }
.pub-year {
  min-width: 40px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
  padding-top: 0.3rem;
  text-align: right;
  flex-shrink: 0;
}
.pub-body { flex: 1; }
.pub-venue {
  display: inline-block;
  background: #e8f0fe;
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.3rem;
}
.pub-title {
  font-size: 0.97rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.2rem;
}
.pub-authors {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.pub-links { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.pub-btn {
  font-size: 0.73rem;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 3px;
  transition: all 0.15s;
  white-space: nowrap;
}
.pub-btn:hover { background: var(--accent); color: #fff; text-decoration: none; }

/* ── Blog index list ─────────────────────────────────────────────────── */
.blog-item {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
}
.blog-item:last-child { border-bottom: none; }
.blog-item-date {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 0.2rem;
}
.blog-item-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}
.blog-item-desc {
  font-size: 0.9rem;
  color: var(--muted);
}
.blog-tag {
  display: inline-block;
  font-size: 0.7rem;
  background: var(--card-bg);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.05rem 0.4rem;
  margin-right: 0.25rem;
}

/* ── Blog post ───────────────────────────────────────────────────────── */
.post-header { margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.post-header h1 { font-size: 1.6rem; font-weight: 700; margin-bottom: 0.3rem; }
.post-meta { font-size: 0.83rem; color: var(--muted); }
.post-content { font-size: 1rem; line-height: 1.8; max-width: 680px; }
.post-content h2 { font-size: 1.2rem; font-weight: 700; margin: 2rem 0 0.6rem; }
.post-content h3 { font-size: 1.05rem; font-weight: 600; margin: 1.5rem 0 0.5rem; }
.post-content blockquote {
  border-left: 3px solid var(--accent);
  margin: 1rem 0;
  padding: 0.5rem 1rem;
  color: var(--muted);
  font-style: italic;
}
.post-content code {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.1rem 0.35rem;
  font-size: 0.9em;
}
.post-content pre code {
  display: block;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.5;
}
.back-link { font-size: 0.85rem; color: var(--muted); display: inline-block; margin-bottom: 1.5rem; }
.back-link:hover { color: var(--accent); text-decoration: none; }

/* ── Media / Talks ───────────────────────────────────────────────────── */
.item-list-entry {
  display: flex;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.93rem;
}
.item-list-entry:last-child { border-bottom: none; }
.item-date {
  min-width: 55px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  padding-top: 0.2rem;
  flex-shrink: 0;
}
.item-body { flex: 1; }
.item-title { font-weight: 600; margin-bottom: 0.15rem; line-height: 1.4; }
.item-desc { font-size: 0.87rem; color: var(--muted); }

/* ── Page title ──────────────────────────────────────────────────────── */
.page-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.page-subtitle {
  font-size: 0.93rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

/* ── Footer ──────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  text-align: center;
  margin-top: 3rem;
}
.footer-social {
  display: flex;
  justify-content: center;
  gap: 0.9rem;
  margin-bottom: 0.6rem;
}
.footer-social a { color: var(--muted); font-size: 1.15rem; transition: color 0.15s; }
.footer-social a:hover { color: var(--accent); text-decoration: none; }
.footer-copy { font-size: 0.8rem; color: #adb5bd; margin: 0; }
.footer-copy a { color: #adb5bd; }
.footer-copy a:hover { color: var(--muted); }

/* ── Search overlay ──────────────────────────────────────────────────── */
#search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 9000;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}
#search-overlay.open { display: flex; }
#search-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: min(560px, 92vw);
  box-shadow: 0 8px 40px rgba(0,0,0,0.18);
  overflow: hidden;
}
#search-input {
  width: 100%;
  border: none;
  outline: none;
  font-family: var(--font);
  font-size: 1rem;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  background: var(--bg);
}
#search-results {
  list-style: none;
  margin: 0;
  padding: 0.4rem 0;
  max-height: 320px;
  overflow-y: auto;
}
#search-results li a {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.65rem 1.2rem;
  color: var(--text);
  font-size: 0.92rem;
  transition: background 0.1s;
  text-decoration: none;
}
#search-results li a:hover,
#search-results li.active a { background: var(--card-bg); }
#search-results .result-icon { color: var(--muted); width: 16px; text-align: center; flex-shrink: 0; }
#search-results .result-section { font-size: 0.72rem; color: var(--muted); margin-left: auto; flex-shrink: 0; }
#search-hint {
  padding: 0.5rem 1.2rem;
  font-size: 0.75rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}
#search-hint kbd {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.05rem 0.3rem;
  font-family: var(--font);
  font-size: 0.72rem;
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 767px) {
  .profile-photo { width: 110px; height: 110px; }
  .display-name { font-size: 1.4rem; }
  .pub-item { flex-direction: column; gap: 0.2rem; }
  .pub-year { text-align: left; }
}